disable ctrl+c in my program

patrix has asked for the wisdom of the Perl Monks concerning the following question:

Replies are listed 'Best First'.
Re: disable ctrl+c in my program by thinker (Parson) on Jan 15, 2003 at 20:24 UTC
Hi patrix, the signal you want to catch is the interrupt signal. Just put in a line like `$SIG{'INT'} = 'IGNORE';` [download] and the program will no longer terminate on Ctrl-C Hope this helps thinker	[reply] [d/l]
Re: disable ctrl+c in my program by dragonchild (Archbishop) on Jan 15, 2003 at 19:53 UTC
ctrl-c sends what's know as a signal to the OS. The OS then sends that signal to your program. Read up on the %SIG hash. I believe you're looking for $SIG{KILL}, though I could be mistaken. ------ We are the carpenters and bricklayers of the Information Age. Don't go borrowing trouble. For programmers, this means Worry only about what you need to implement.	[reply]
Re: disable ctrl+c in my program by Abigail-II (Bishop) on Jan 15, 2003 at 21:16 UTC
Eh, no. SIGKILL is one of two signals you cannot ignore (the other is SIGSTOP). SIGKILL is what you get if you do `kill -9 PID`. ^C typically sends SIGINT. So, you would have to do `SIG {INT} = 'IGNORE'`. Abigail	[reply] [d/l] [select]
Re: disable ctrl+c in my program by zentara (Cardinal) on Jan 16, 2003 at 18:25 UTC
Here is something to play with. `#!/usr/bin/perl my $interrupted; local $SIG{INT} = sub { $interupted = 1 }; while (1) { print "hi\n"; sleep 1; if ($interrupted) { warn "ctrl-c pressed!\n" and $interrupted = 0 } }` [download]	[reply] [d/l]